Benjamin Franklin performed a beautiful experiment using surfactants; on a pond at Clapham Common he poured a small amount of oleic acid a natural surfactant which tends to form a dense film at the water-air interface. He measured the volume required to cover all the pond. Knowing the area he then knew the height of the film something like three nanometers in our current units. ~ Pierre-Gilles de Gennes 1932 to 2007
Archimedes’ finding that the crown was of gold was a discovery; but he invented the method of determining the density of solids. Indeed discoverers must generally be inventors; though inventors are not necessarily discoverers. - William Ramsay 1852 to 1916 Chemist
James Henry Greathead (1844–1896) South Africa – tunnel boring machine tunnelling shield technique.
John Hadley (1682–1744) UK – Octant.
Fazlur Khan (1929–1982) Bangladesh – structural systems for high-rise skyscrapers.
Nikolai Korotkov (1874–1920) Russia – auscultatory technique for blood pressure measurement.
Benjamin Franklin (1706–1790) USA – the pointed lightning rod conductor bifocal glasses the Franklin stove the glass harmonica.
Dmitry Lachinov (1842–1902) Russia – mercury pump economizer for electricity consumption electrical insulation tester optical dynamometer photometer elecrolyser.
Félix d'Herelle (1873–1949) together with Giorgi Eliava (1892–1937) France / Georgia – Phage therapy.
Sharaf al-Dīn al-Tūsī (1135–1213) Persia/Iran – linear astrolabe.
Benoît Fourneyron (1802–1867) France – water turbine.
Charles F. Brush (1849–1929) USA – a.o. Brush dynamo.
Mikhail Dolivo-Dobrovolsky (1862–1919) Poland/Russia – three-phase electric power (first 3-phase hydroelectric power plant 3-phase electrical generator 3-phase motor and 3-phase transformer).
Antonio Pacinotti (1841–1912) Italy – Pacinotti dynamo.
Nikolay Basov (1922–2001) Russia – co-inventor of laser and maser.
Niklaus Riggenbach (1817–1899) Switzerland – Riggenbach rack railway system Counter-pressure brake.
Victor Babeș (1854–1926) Romania – Babesia the founder of serum therapy.
Friedrich Wilhelm Gustav Bruhn (1853–1927) Germany – Taximeter.
Cornelis Corneliszoon (1550–1607) The Netherlands – sawmill.
Mikhail Tikhonravov (1900–1974) Russia – co-developer of Sputnik 1 (the first artificial satellite) together with Korolyov and Keldysh designer of further Sputniks.
Stanislav Brebera (1925–2012) Czech Republic – Semtex explosive.
Archibald Low (1882–1956) Britain – Pioneer of radio guidance systems.
All of physics is either impossible or trivial. It is impossible until you understand it and then it becomes trivial. ~ Ernest Rutherford 1871 to 1937
Nearly 2.5 billion years of prokaryotic cells and nothing else – two-thirds of life’s history in stasis at the lowest level of recorded complexity… Why did life remain at stage 1 for two-thirds of its history if complexity offers such benefits? ~ Stephen Jay Gould 1941 to 2002 - Paleontologist
Progress is made by trial and failure; the failures are generally a hundred times more numerous than the successes ; yet they are usually left unchronicled. - William Ramsay 1852 to 1916 Chemist
Chemistry begins in the stars. The stars are the source of the chemical elements which are the building blocks of matter and the core of our subject. ~ Peter Atkins - 1940 to present
A fact acquires its true and full value only through the idea which is developed from it. ~ Justus von Liebig - 1803 to 1873
Everything that human beings or living animals do is done by protein molecules. And therefore the kind of proteins that one has and therefore the ability one has is determined by the genes that one has. ~ Har Gobind Khorana 1922 – 2011 - Molecular Biologist
On the principle of successive variations not always supervening at an early age and being inherited at a corresponding not early period of life we can clearly see why the embryos of mammals birds reptiles and fishes should be so closely alike and should be so unlike the adult forms. ~ Charles Darwin 1809 to 1882 - Naturalist Evolutionary Biologist
- Intelligently heat and cool your home
- Wireless control with your smartphone
- Regulate airflow in rooms that are too hot, too cold, or not in use
- Keen Home Smart Bridge required for operation
- Simple 7 day, 3 button programmable timer
- Unique design provides mounting on floor, ceiling, and walls
- Removable timer module for easy programming and battery installation
- Low battery alert
- Heavy-duty construction
- 16" x 8" - 316 Marine Grade Stainless Steel Vent
- FEMA-Accepted, ICC-ES Certified
- Certified For 200 sq. ft. of Flood Coverage
- 8.34 R Value
- 15 Year Warranty With Product Registration